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Nrf2 AND carnosic acid

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https://www.readbyqxmd.com/read/28887507/carnosic-acid-prevents-dextran-sulfate-sodium-induced-acute-colitis-associated-with-the-regulation-of-the-keap1-nrf2-pathway
#1
Neng Yang, Zongling Xia, Naiyuan Shao, Bowen Li, Lian Xue, Ya Peng, Feng Zhi, Yilin Yang
Crohn's disease and ulcerative colitis are inflammatory bowel diseases (IBDs) with high prevalence in humans. Carnosic acid (CA) has been reported to possess antioxidative properties; however, its role in IBDs has not been determined. In the present study, we found that CA significantly prevented the loss of body weight and shortening of colon length in acute colitis induced by dextran sodium sulfate (DSS). Pronounced infiltration of immune cells and a loss of crypt architecture and goblet cells were ameliorated by CA...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28674855/carnosic-acid-attenuates-rankl-induced-oxidative-stress-and-osteoclastogenesis-via-induction-of-nrf2-and-suppression-of-nf-%C3%AE%C2%BAb-and-mapk-signalling
#2
Dinesh Thummuri, V G M Naidu, Pradip Chaudhari
Nuclear factor-erythroid 2-related factor 2 (Nrf2) is a redox-sensitive transcription factor, which plays an important role in the cellular defense against oxidative stress by induction of anti-oxidant and cytoprotective enzymes. In the current study, we sought to investigate the osteoprotective effect of carnosic acid (CA), a phenolic (catecholic) diterpene. It is widely identified for its electrophilic nature under oxidative stress conditions and thus anticipated to counter osteoporosis by facilitation of Nrf2 signalling...
July 4, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28286534/rosemary-extracts-upregulate-nrf2-sestrin2-and-mrp2-protein-level-in-human-hepatoma-hepg2-cells
#3
Xiao-Pei Tong, Yan-Xia Ma, Dan-Ni Quan, Ling Zhang, Miao Yan, Xin-Rong Fan
In the past few decades, the incidence of liver cancer has been rapidly rising across the world. Rosemary is known to possess antioxidant activity and is used as natural antioxidant food preservative. It is proposed to have anticancer activity in treating different tumor models. In this study, we try to explore the impact of rosemary extracts on upregulating the level of Nrf2 and Nrf2-regulatory proteins, Sestrin2 and MRP2 in HepG2 cells, and to speculate its potential mechanism. The anticancer activity of rosemary extract, including its polyphenolic diterpenes carnosic acid and carnosol, was evaluated to understand the potential effect on HepG2 cells...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28159594/protective-effect-of-carnosic-acid-against-acrylamide-induced-toxicity-in-rpe-cells
#4
Aishah Albalawi, Reem Hasaballah A Alhasani, Lincoln Biswas, James Reilly, Xinhua Shu
Acrylamide is a substance that can be neurotoxic in humans and experimental animals. It is formed at different rates in starchy foods cooked at temperatures above 120 °C as a result of interaction between monosaccharides and the amino acid asparagine. Carnosic acid accounts for over 90% of the antioxidant properties of rosemary extract and is a powerful inhibitor of lipid peroxidation in microsomal and liposomal systems. Carnosic acid has been shown to protect against oxidative and inflammatory effects. In order to investigate the protective properties of carnosic acid against acrylamide-induced toxicity in human retinal pigment epithelium (RPE) cells, ARPE-19 cells were pre-treated with 10 μM CA for 24 h followed by treatment with acrylamide (0...
January 31, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28073699/activation-of-nrf2-attenuates-carbonyl-stress-induced-by-methylglyoxal-in-human-neuroblastoma-cells-increase-in-gsh-levels-is-a-critical-event-for-the-detoxification-mechanism
#5
Shoichi Nishimoto, Shin Koike, Naho Inoue, Toshihiro Suzuki, Yuki Ogasawara
The present study focused on the methylglyoxal (MG) detoxification mechanism in neuroblastoma cells. The involvement of nuclear factor erythroid 2-related factor 2 (Nrf2)/Kelch-like ECH-associated protein 1 (Keap1) pathway as a defense response against the formation of MG-modified proteins, which is well-known evidence of carbonyl stress, was also examined. We found that MG treatment resulted in accumulation of modified proteins bearing the structure of advanced glycation end products (AGEs) derived from MG in SH-SY5Y cells...
February 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27906174/therapeutic-advantage-of-pro-electrophilic-drugs-to-activate-the-nrf2-are-pathway-in-alzheimer-s-disease-models
#6
Stuart A Lipton, Tayebeh Rezaie, Anthony Nutter, Kevin M Lopez, James Parker, Kunio Kosaka, Takumi Satoh, Scott R McKercher, Eliezer Masliah, Nobuki Nakanishi
Alzheimer's disease (AD) is characterized by synaptic and neuronal loss, which occurs at least partially through oxidative stress induced by oligomeric amyloid-β (Aβ)-peptide. Carnosic acid (CA), a chemical found in rosemary and sage, is a pro-electrophilic compound that is converted to its active form by oxidative stress. The active form stimulates the Keap1/Nrf2 transcriptional pathway and thus production of phase 2 antioxidant enzymes. We used both in vitro and in vivo models. For in vitro studies, we evaluated protective effects of CA on primary neurons exposed to oligomeric Aβ...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27834734/nano-liquid-chromatography-orbitrap-ms-based-quantitative-proteomics-reveals-differences-between-the-mechanisms-of-action-of-carnosic-acid-and-carnosol-in-colon-cancer-cells
#7
COMPARATIVE STUDY
Alberto Valdés, Virginia García-Cañas, Konstantin A Artemenko, Carolina Simó, Jonas Bergquist, Alejandro Cifuentes
Carnosic acid (CA) and carnosol (CS) are two structurally related diterpenes present in rosemary herb (Rosmarinus officinalis). Although several studies have demonstrated that both diterpenes can scavenge free radicals and interfere in cellular processes such as cell proliferation, they may not necessarily exert the same effects at the molecular level. In this work, a shotgun proteomics study based on stable isotope dimethyl labeling (DML) and nano-liquid chromatography-tandem mass spectrometry (nano-LC-MS/MS) has been performed to identify the relative changes in proteins and to gain some light on the specific molecular targets and mechanisms of action of CA and CS in HT-29 colon cancer cells...
January 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/27686076/carnosic-acid-protects-mitochondria-of-human-neuroblastoma-sh-sy5y-cells-exposed-to-paraquat-through-activation-of-the-nrf2-ho-1axis
#8
Marcos Roberto de Oliveira, Alessandra Peres, Gustavo Costa Ferreira, Patrícia Fernanda Schuck, Clarissa S Gama, Simone Morelo Dal Bosco
Carnosic acid (CA; C20H28O4), which is also called salvin, is a major phenolic diterpene found in Rosmarinus officinalis L. and exhibits antioxidant, anti-inflammatory, and antiproliferative properties. CA activates the nuclear factor erythroid 2-related factor 2 (Nrf2) transcription factor, leading to the upregulation of antioxidant and phase II detoxification enzymes, such as heme oxygenase-1 (HO-1), glutathione reductase (GR), γ-glutamate-cysteine ligase (γ-GCL), and glutathione S-transferase (GST), among others...
September 29, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27435046/carnosic-acid-protects-starvation-induced-sh-sy5y-cell-death-through-erk1-2-and-akt-pathways-autophagy-and-foxo3a
#9
Sachi Shibata, Hiroyuki Ishitobi, Shigeru Miyaki, Tomohiro Kawaoka, Tomoko Kayashima, Kiminori Matsubara
Carnosic acid (CA) is recognized as a unique neuroprotective compound in the herb rosemary, since it induces expression of antioxidant enzymes including heme oxygenase-1 (HO-1), γ-glutamylcysteine synthase (γ-GCS), and glutathione S-transferase (GST) via activation of nuclear factor erythroid 2-related factor 2 (Nrf2), which is a nuclear transcription factor. In this study, we examined the cytoprotective effects of CA against starvation. We found that CA protected starvation-induced SH-SY5Y cell death by activating Akt and extracellular signal-regulated kinase 1/2 (Erk1/2)...
December 2016: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/27317373/nrf2-activation-ameliorates-cytotoxic-effects-of-arsenic-trioxide-in-acute-promyelocytic-leukemia-cells-through-increased-glutathione-levels-and-arsenic-efflux-from-cells
#10
Shoichi Nishimoto, Toshihiro Suzuki, Shin Koike, Bo Yuan, Norio Takagi, Yuki Ogasawara
Carnosic acid (CA), a phenolic diterpene isolated from Rosmarinus officinalis, has been shown to activate nuclear transcription factor E2-related factor 2 (Nrf2), which plays a central role in cytoprotective responses to oxidative and electrophilic stress. Recently, the Nrf2-Kelch ECH associating protein 1 (Keap1) pathway has been associated with cancer drug resistance attributable to modulation of the expression and activation of antioxidant and detoxification enzymes. However, the exact mechanisms by which Nrf2 activation results in chemoresistance are insufficiently understood to date...
August 15, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27083155/carnosic-acid-affords-mitochondrial-protection-in-chlorpyrifos-treated-sh-sy5y-cells
#11
Marcos Roberto de Oliveira, Alessandra Peres, Gustavo Costa Ferreira, Patrícia Fernanda Schuck, Simone Morelo Dal Bosco
Carnosic acid (CA; C20H28O4) is a phenolic diterpene found in rosemary (Rosmarinus officinalis L.) and exhibits protective properties, e.g., antioxidant, anti-inflammatory, antitumor, and antimicrobial activities. In this context, CA has been viewed as a neuroprotective agent due to its ability in rescuing neuronal cells from pro-oxidant and pro-apoptotic challenges. In the present work, we found that CA pretreatment at 1 µM for 12 h suppressed the mitochondria-related pro-oxidant and mitochondria-dependent pro-apoptotic effects of chlorpyrifos (CPF) in human neuroblastoma SH-SY5Y cells...
October 2016: Neurotoxicity Research
https://www.readbyqxmd.com/read/26820671/molecular-and-biochemical-evidence-on-the-protective-effects-of-embelin-and-carnosic-acid-in-isoproterenol-induced-acute-myocardial-injury-in-rats
#12
COMPARATIVE STUDY
Cengiz Kocak, Fatma Emel Kocak, Raziye Akcilar, Ozben Ozden Isiklar, Havva Kocak, Zeynep Bayat, Hasan Simsek, Figen Taser, Irfan Altuntas
AIMS: Acute myocardial infarction is a serious acute cardiac disorder and heart disease is still a major public health problem in adults. We investigated the effects of embelin (EMB) and carnosic acid (CA) in animals with isoproterenol (ISO)-induced myocardial injury. MAIN METHODS: Adult male Wistar-Albino rats were divided into four groups: control, ISO, ISO with EMB, and ISO with CA. Before myocardial injury was induced, drugs were administered by oral gavage...
February 15, 2016: Life Sciences
https://www.readbyqxmd.com/read/26807019/carnosic-acid-protects-against-acetaminophen-induced-hepatotoxicity-by-potentiating-nrf2-mediated-antioxidant-capacity-in-mice
#13
Qi Guo, Zhiyang Shen, Hongxia Yu, Gaofeng Lu, Yong Yu, Xia Liu, Pengyuan Zheng
Acetaminophen (APAP) overdose is one of the most common causes of acute liver failure. The study aimed to investigate the protective effect of carnosic acid (CA) on APAP-induced acute hepatotoxicity and its underlying mechanism in mice. To induce hepatotoxicity, APAP solution (400 mg/kg) was administered into mice by intraperitoneal injection. Histological analysis revealed that CA treatment significantly ameliorated APAP-induced hepatic necrosis. The levels of both alanine aminotransferase (ALT) and aspartate transaminase (AST) in serum were reduced by CA treatment...
January 2016: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/26730179/modulation-of-neurotrophic-signaling-pathways-by-polyphenols
#14
REVIEW
Fatemeh Moosavi, Razieh Hosseini, Luciano Saso, Omidreza Firuzi
Polyphenols are an important class of phytochemicals, and several lines of evidence have demonstrated their beneficial effects in the context of a number of pathologies including neurodegenerative disorders such as Alzheimer's and Parkinson's disease. In this report, we review the studies on the effects of polyphenols on neuronal survival, growth, proliferation and differentiation, and the signaling pathways involved in these neurotrophic actions. Several polyphenols including flavonoids such as baicalein, daidzein, luteolin, and nobiletin as well as nonflavonoid polyphenols such as auraptene, carnosic acid, curcuminoids, and hydroxycinnamic acid derivatives including caffeic acid phentyl ester enhance neuronal survival and promote neurite outgrowth in vitro, a hallmark of neuronal differentiation...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/26686574/protective-effect-of-carnosic-acid-against-paraquat-induced-redox-impairment-and-mitochondrial-dysfunction-in-sh-sy5y-cells-role-for-pi3k-akt-nrf2-pathway
#15
Marcos Roberto de Oliveira, Gustavo Costa Ferreira, Patrícia Fernanda Schuck
Carnosic acid (CA) is a phenolic diterpene isolated from Rosmarinus officinalis and exerts anti-inflammatory, antioxidant, and anticarcinogenic activities in different cell types. It has been reported that CA is able to cause protective effects on experimental models of neurodegeneration. However, the exact mechanism by which CA prevents neuronal degeneration remains to be better studied. We investigated here whether there is a role for CA as a neuroprotective agent in a paraquat (PQ) model of Parkinson's disease (PD) regarding cellular and mitochondrial-related redox parameters...
April 2016: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/26577515/role-for-the-pi3k-akt-nrf2-signaling-pathway-in-the-protective-effects-of-carnosic-acid-against-methylglyoxal-induced-neurotoxicity-in-sh-sy5y-neuroblastoma-cells
#16
Marcos Roberto de Oliveira, Gustavo Costa Ferreira, Patrícia Fernanda Schuck, Simone Morelo Dal Bosco
Glycation, a process that occurs endogenously and generates advanced glycation end products (AGEs), presents an important role in cases of neurodegeneration, as for instance Alzheimer's disease (AD). Methylglyoxal (MG), a dicarbonyl compound, is the most potent inducer of AGEs, whose levels have been found increased in samples obtained from subjects suffering from AD. Moreover, MG induces protein cross-linking and redox impairment in vitro and in vivo. Carnosic acid (CA), a phenolic diterpene isolated from Rosmarinus officinalis, exerts protective effects in neuronal cells by increasing antioxidant defenses and detoxification systems...
December 5, 2015: Chemico-biological Interactions
https://www.readbyqxmd.com/read/26293030/carnosol-is-a-potent-lung-protective-agent-experimental-study-on-mice
#17
T Kawamura, T Momozane, M Sanosaka, K Sugimura, O Iida, H Fuchino, S Funaki, Y Shintani, M Inoue, M Minami, N Kawahara, H Takemori, M Okumura
INTRODUCTION: Oxidative stress has been implicated in various disease states and ischemia/reperfusion injury is a direct consequence of oxidative stress in lung transplantation. Because the success rate of organ transplantation in which ischemia/reperfusion is inevitable is highly influenced by oxidative stress, development of strategies to control oxidative stress would be beneficial. Here we identified natural compounds to reduce oxidative stresses in isolated mouse lungs. METHODS: We screened compounds associated with antioxidative stress in 200 plant extracts by monitoring the activities of nuclear factor erythroid 2-related factor 2 (NRF2)...
July 2015: Transplantation Proceedings
https://www.readbyqxmd.com/read/26223904/carnosic-acid-protects-normal-mouse-hepatocytes-against-h2-o2-induced-cytotoxicity-via-sirtuin-1-mediated-signaling
#18
Ting Wang, Yasuhiro Takikawa
AIM: Carnosic acid (CA) is well known for its antioxidant properties. The aim of this study was to examine the effects of CA on cytotoxicity under oxidative stress. METHODS: Primary hepatocytes and AML12 cells were treated with: (i) 0.1 μM, 1 μM and 10 μM CA; (ii) 3 mM H2 O2 with or without 1 μM CA; or (iii) 3 mM H2 O2 with 1 μM CA and 0.04 μM sirtuin 1 (SIRT1) inhibitor EX527 or 10 μM mitogen-activated protein kinase (MAPK) inhibitor U0126. Cell viability, intracellular reactive oxygen species (ROS) and lactate dehydrogenase (LDH) leakage were determined...
February 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/25974399/induction-of-the-pi-class-of-glutathione-s-transferase-by-carnosic-acid-in-rat-clone-9-cells-via-the-p38-nrf2-pathway
#19
COMPARATIVE STUDY
Chia-Yuan Lin, Chi-Rei Wu, Shu-Wei Chang, Yu-Jung Wang, Jia-Jiuan Wu, Chia-Wen Tsai
Induction of phase II enzymes is important in cancer chemoprevention. We compared the effect of rosemary diterpenes on the expression of the pi class of glutathione S-transferase (GSTP) in rat liver Clone 9 cells and the signaling pathways involved. Culturing cells with 1, 5, 10, or 20 μM carnosic acid (CA) or carnosol (CS) for 24 h in a dose-dependent manner increased the GSTP expression. CA was more potent than CS. The RNA level and the enzyme activity of GSTP were also enhanced by CA treatment. Treatment with 10 μM CA highly induced the reporter activity of the enhancer element GPEI...
June 2015: Food & Function
https://www.readbyqxmd.com/read/25744415/redox-dependent-induction-of-antioxidant-defenses-by-phenolic-diterpenes-confers-stress-tolerance-in-normal-human-skin-fibroblasts-insights-on-replicative-senescence
#20
Ana C Carvalho, Andreia C Gomes, Cristina Pereira-Wilson, Cristovao F Lima
Mild stress-induced hormesis represents a promising strategy for targeting the age-related accumulation of molecular damage and, therefore, for preventing diseases and achieving healthy aging. Fruits, vegetables, and spices contain a wide variety of hormetic phytochemicals, which may explain the beneficial health effects associated with the consumption of these dietary components. In the present study, the induction of cellular antioxidant defenses by the phenolic diterpenes carnosic acid (CA) and carnosol (CS) were studied in normal human skin fibroblasts, and insights into the aging process at the cellular level investigated...
June 2015: Free Radical Biology & Medicine
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